1、AMSC N/A FSC 5920 INCH-POUND MIL-PRF-15160/20F 15 November 2011 SUPERSEDING MIL-PRF-15160/20E 7 July 2006 PERFORMANCE SPECIFICATION SHEET FUSES, INSTRUMENT, POWER, AND TELEPHONE (NONINDICATING), STYLE F20 This specification is approved for use by all Departments and Agencies of the Department of Def
2、ense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-15160. FIGURE 1. Style F20, characteristic BR. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15160/20F 2 Ltr Inches mm M
3、in Max Min Max A 7.063 7.187 179.40 182.55 B - 1.688 - 42.88 C 1.375 - 34.93 - D 1.188 - 30.18 - E .990 1.160 25.15 29.46 F - 1.876 - 47.65 G .165 .171 4.19 4.34 H .407 .469 10.34 11.91 J .276 .306 7.01 7.77 K - .125 - 3.18 L .622 .754 15.80 19.15 NOTES: 1. Dimensions are in inches. 2. Metric equiva
4、lents are given for general information only. FIGURE 1. Style F20 characteristic BR - Continued. REQUIREMENTS: Interface and physical dimensions: See figure 1. Case: Fiber or alternate material. (Alternate to fiber material (tube) shall have an average burst strength of 2,300 pounds per square inch
5、with a value of not less than 1,900 pounds per square inch). Knifeblade: Copper. Finish: Nickel, bright alloy, or bright dipped, silver plated when specified. Terminal strength: Method 211 of MIL-STD-202, test condition E, 5 inch-pound torque between ferrules and fuse body. Electrical: Electrical re
6、quirements shall be as specified in table I. Shock: Method 207 of MIL-STD-202, HI shock. Vibration: Method 204 of MIL-STD-202, test condition A (except 5g peak). Temperature: Temperature rise shall be not greater than the values shown in table II. Provided by IHSNot for ResaleNo reproduction or netw
7、orking permitted without license from IHS-,-,-MIL-PRF-15160/20F 3 TABLE I Electrical requirements. Characteristics BR Voltage rating Overload test 1/ 135% 500% Short circuit test at 250 V dc at 250 V ac 250 V ac 250 V dc 0 2 hour 10 25 seconds 10,000A 200,000A (20% PF max.) 2/ 1/ Overload is shown a
8、s a percentage of the current rating of the fuse. 2/ Power factor (PF). TABLE II. Allowable temperature rise in degrees Celsius (C). Casing of body Terminals Thermometer Thermocouple Thermometer Thermocouple 50 C 90 C 60 C 90 C Part or Identifying Number (PIN): The PIN shall be constructed from tabl
9、e III (e.g., F20BR250V110A). TABLE III Part or Identifying Number. 1/ 2/ Style Characteristic Maximum voltage Current rating F20 BR 3/ 250 V 110A F20 BR 3/ 250 V 125A F20 BR 3/ 250 V 150A F20 BR 3/ 250 V 175A F20 BR 3/ 250 V 200A 1/ For silver plated terminals, the designator “S” is added after the
10、current rating. 2/ The characteristic A fuse has been discontinued without replacement. 3/ The characteristic B fuse has been discontinued. The characteristic BR fuse may be used to replace the old characteristic B fuse of the same current rating. Provided by IHSNot for ResaleNo reproduction or netw
11、orking permitted without license from IHS-,-,-MIL-PRF-15160/20F 4 VERIFICATION: Qualification inspections: The number of qualification samples required shall be: a. 24 samples maximum current rating of each voltage and design. b. 24 samples minimum current rating of each voltage and design. NOTE: If
12、 labels are used, five additional samples of any rating are required. Referenced documents. In addition to MIL-PRF-15160, this document references the following: MIL-STD-202 The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made.
13、This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to t
14、he last previous issue. Custodians: Preparing activity: Army - CR DLA - CC Navy - SH Air Force - 85 (5920-2011-077) DLA - CC Review activities: Army - AT, CR4, MI Navy - AS, CG, MC, OS Air Force - 19, 99 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
